Not sure why after exporting mp3 @ 160 kbt wont play in car cd player> Any ideas?
Incompatibility between either the file, the CD format, or both and your player. In MY car I use a “Mastered” burn when I burn the songs to the disc. Also, you should confirm your player can read “data” files and not just audio discs.
HTH
J.L.
Also confirm that the locators aren’t backwards when you export. 
Your car is broken…